using communicative and associativity of addition express as a rational number. 3/7+-4/9+-11/7+7/9​

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using communicative and associativity of addition express as a rational number. 3/7+-4/9+-11/7+7/9​

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Melanie 4 months 2021-07-18T23:48:05+00:00 1 Answers 0 views 0

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    2021-07-18T23:49:48+00:00

    (3/7-11/7)+(7/9-4/9)

    (-8/7)+(3/9)

    (-72+27)/56

    -45/56

    -5/8.

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